scholarly journals ACCUMULATION OF HEAVY METALS IN BOTTOM SEDIMENTS OF THE VOLGA RIVER

2020 ◽  
pp. 169-178
Author(s):  
Олег Алексеевич Тихомиров ◽  
Наталья Евгеньевна Сердитова
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
The State ◽  
Volga River ◽  
Upper Volga ◽  
Tver Region ◽  
Geochemical Assessment

В статье рассматриваются вопросы накопления тяжелых металлов в донных отложениях реки Волги в пределах Тверской области. Анализируются основные источники загрязняющих веществ. Дается характеристика концентраций тяжелых металлов в воде и донных отложениях. Приводится эколого-геохимическая оценка состояния донных грунтов Верхней Волги и Иваньковского водохранилища. The article deals with the accumulation of heavy metals in the bottom sediments of the Volga River within the Tver region. The main sources of pollutants are analyzed. The characteristics of the concentrations of heavy metals in water and bottom sediments are given. An ecological and geochemical assessment of the state of bottom soils of the Upper Volga and Ivankovskoye reservoir is given.

Heavy Metals in the Water, Plants, and Bottom Sediments of the Volga River Mouth Area

2015 ◽  
Vol 314 ◽  
pp. 859-868 ◽  
Author(s):  
Mikhail Yu. Lychagin ◽  
Anna N. Tkachenko ◽  
Nikolay S. Kasimov ◽  
Salomon B. Kroonenberg
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
River Mouth ◽  
Mouth Area ◽  
Volga River ◽  
River Mouth Area ◽  
Water Plants

scholarly journals Assessment of heavy metals in modern bottom sediments on the Karadag seashore

2020 ◽  
Vol 169 ◽  
pp. 01010
Author(s):  
Anna Drygval ◽  
Polina Drygval ◽  
Elena Stanis ◽  
Vladimir Maltsev
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
Quantitative Assessment ◽  
Nature Reserve ◽  
Arsenic Concentration ◽  
Field Studies ◽  
Water Area ◽  
Nickel Lead ◽  
Concentration Limits ◽  
Geochemical Assessment

The work presents the results of quantitative assessment of heavy metals (HM) content in bottom sediments of the coastal zone near the Karadag nature Reserve. The data were obtained as a result of field studies in 2016-2018. Estimated СС and Cо coefficients and Zc were calculated. It was shown that arsenic concentration limits were exceeded everywhere in the samples. The nickel, lead, copper and zinc limits were found to have been exceeded in some locations. Ecological and geochemical assessment of water and bottom sediments quality in the section of Karadag water area has been made.

scholarly journals ECOLOGICAL AND GEOCHEMICAL ASSESSMENT OF BIOGENIC AND ACCUMULATIVE WATER COMPLEXES OF UPPER VOLGA RESERVOIRS

2020 ◽  
pp. 17-29
Author(s):  
Олег Алексеевич Тихомиров
Keyword(s):  
Heavy Metals ◽  
Geochemical Characteristics ◽  
Organic Substances ◽  
Upper Volga ◽  
Volga Reservoirs ◽  
Geochemical Assessment ◽  
Upper Volga Reservoirs

В статье приводится эколого-геохимическая характеристика биогенноаккумулятивных аквальных комплексов, рассматриваются вопросы накопления органических веществ и тяжелых металлов в аквальных комплексах верхневолжских водохранилищ. Приводится экологогеохимическая оценка состояния аквальных комплексов разной степени зарастания. The article presents the ecological and geochemical characteristics of biogenic accumulative aquatic complexes, discusses the accumulation of organic substances and heavy metals in the aquatic complexes of the upper Volga reservoirs. An ecological and geochemical.

scholarly journals REFCOND-VOLGA: a monitoring programme for water quality in the headwaters of the Volga River (Tver region, Russia)

2016 ◽  
Vol 4 (1) ◽  
pp. 18 ◽  
Author(s):  
Martin Schletterer ◽  
Leopold Füreder ◽  
Vyacheslav Viktorovich Kuzovlev ◽  
Kyrill Yuryevich Zhenikov ◽  
Yuri Nikolayevich Zhenikov
Keyword(s):  
Water Quality ◽  
Research Area ◽  
Main Channel ◽  
Monitoring Programme ◽  
Biological Parameters ◽  
Research Project ◽  
Volga River ◽  
Upper Volga ◽  
Tver Region

<p>Within the research expedition “Upper Volga 2005” an assessment of hydrological, limnochemical and biological parameters was carried out in the Volga River upstream of Tver, including the main channel as well as major tributaries. This assessment revealed that the headwaters of the Volga River represent conditions which are either reference or least disturbed and stipulated the establishment of the monitoring programme “REFCOND_VOLGA”, which is in operation since 2006 and includes stretches along the Volga River (Rzhev, Staritsa, Tver) as well as along the tributary Tudovka.</p>This paper summarizes the “first 10 years” of this joint Russia-Austrian research project, focusing on a sound description of the research area and providing a complementary view on the available data as well as a view ahead.

scholarly journals Geoecological Assessment of the State of Coastal Waters and Bottom Sediments of the Lake Baikal and Its Tributaries (West Coast)

2021 ◽  
Vol 37 ◽  
pp. 103-114
Author(s):  
M. S. Yanchuk ◽  
Keyword(s):  
Heavy Metals ◽  
Lake Baikal ◽  
Bottom Sediments ◽  
Coastal Waters ◽  
Cobalt Content ◽  
Petroleum Products ◽  
The State ◽  
Western Coast ◽  
Low Degree ◽  
Sediment Bottom

This article presents the results of assessing the quality of coastal waters of the western coast of Lake Baikal and the rivers flowing into it (Kuchulga, Khorga, Sarma, Kurma). To assess the state of coastal waters, the following parameters were determined: the hydrogen index, the content of nitrogen-containing substances, phosphates, petroleum products, and heavy metals. Concentrations of heavy metals were found in the bottom sediments. The research was conducted in the summer period of 2016–2017. The lake shore under consideration is experiencing a high anthropogenic load due to the residential and recreational facilities located there. As a result of the study, it was found that, for most of the considered parameters, the water of the lake and its tributaries meet the established sanitary and hygienic standards. The excess of the MPC of the fishery in terms of the content of copper and lead in the water of the lake and its tributaries was determined. On the basis of the obtained data, a map-scheme of the distribution of nitrogen-containing substances in the study area was constructed. The concentrations of metals in the bottom sediments are also set at the level allowed by sanitary standards. There was a slight excess of the background values for the cobalt content in the samples of bottom sediments taken from the coastal waters of the lake and the Sarma River. To assess the degree of contamination of surface waters with heavy metals, the pollution coefficient for the sediment bottom was calculated, according to which the water bodies under consideration have a low degree of HM contamination.

The main principles and results of pollution monitoring of sediments in the river basin

2020 ◽  
pp. 14-20
Author(s):  
B. Korzhenevsky ◽  
Gleb Tolkachev ◽  
Nikolay Kolomiycev
Keyword(s):  
Heavy Metals ◽  
River Basin ◽  
Water Exchange ◽  
Pollution Monitoring ◽  
Small Rivers ◽  
Volga River ◽  
Natural Landscape ◽  
Volga River Basin ◽  
Ivankovo Reservoir ◽  
Selection Of

The problems of modern geological ecology associated with the study of pollution of sediments of water bodies by heavy metals are considered. The Volga River basin is quite heterogeneous, both in geomorphological and hydrological terms, and in thechnogenical development and usage. A fourrank taxonomy is presented for the selection of sites for monitoring, based on a combination of natural, landscape, climatic and thechnogenical factors. To the largest – the highest taxon – sites of the Ist category – bowls of reservoirs with the slopes and the urban zones, industrial and agricultural structures located within them are carried. Within these areas are allocated to smaller taxa, areas category IInd are the industrial and urban zones, areas category IIIrd are the small rivers without significant contamination and areas category IVth to conduct special observations. The examples of special observations in the study of the annual migration of heavy metals in the system «bottom sediments – water column» on the Ivankovo reservoir are highlighted. The investigations were carried out under the conditions of the standard flow rate for this reservoir and in the conditions of slow water exchange.

Content of the Heavy Metals in Water and Bottom Sediments of the Ingulets River

2008 ◽  
Vol 44 (5) ◽  
pp. 105-110 ◽  
Author(s):  
I. M. Malakhov ◽  
A. O. Bobko ◽  
T. M. Aliokhina
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments

INFLUENCE OF THE ECOLOGICAL STATE OF THE SEREPOK RIVER (VIETNAM) ON ACCUMULATION OF HEAVY METALS IN ORGANS OF FISH

2017 ◽  
pp. 98-105
Author(s):  
Ngo The Cuong ◽  
Tran Hoan Quoc ◽  
Svetlana Vasilievna Zolotokopova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
River Water ◽  
Bottom Sediments ◽  
Heavy Metal Concentration ◽  
Industrial Areas ◽  
Industrial Regions ◽  
Cadmium Lead ◽  
Sarotherodon Galilaeus ◽  
Water Bottom

The article focuses on the study of change of containing heavy metals (zinc, copper, iron, cadmium, lead, arsenic) in the abiotic and biotic components of the Serepok river (Vietman) influenced by wastewater discharge from industrial areas. Heavy metal content was determined in the river water and bottom sediments in the four zones: above and within the boundaries of industrial regions Xoa Phu and Tam Thang and in two water reservoirs situated below the boundaries of those industrial areas. Tilapia Galilean ( Sarotherodon galilaeus ), Hemibagrus ( Hemibagrus ), and sazan ( Cyprinus carpio ) caught in these areas were the hydrobionts under study in which liver, gills, skeleton and muscles accumulation of heavy metals was detected. In the organs of fish caught in the river within industrial region, heavy metals concentration was 3-7 times higher. The greatest concentration of heavy metals was found in the liver and gills of fish caught in the boundaries of industrial regions, the least concentration was in the muscles. In most cases, significant correlation between heavy metal concentration in organs of fishes and in river water, bottom sediments has been revealed.

PROBLEM OF HEAVY METAL SURFACE SEDIMENT CONTAMINATION IN THE EASTERN GULF OF FINLAND

2017 ◽  
Author(s):  
N Derugina ◽  
N Derugina ◽  
А Grigoriev ◽  
A Grigoriev ◽  
Дарья Рябчук ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Bottom Sediments ◽  
Late Holocene ◽  
Sediment Contamination ◽  
Gulf Of Finland ◽  
Slow Decline ◽  
Contamination Levels ◽  
The Gulf Of Finland ◽  
Neva Bay

This project defines the pre-industrial quantities of heavy metals in sediment sequences of the Late Holocene from the Eastern Gulf of Finland. A comparative analysis reveals differences and similarities in the current concentrations of heavy metals in bottom sediments and pre-industrial levels. It is found that the maximum concentrations of heavy metals in the bottom sediments of the Gulf of Finland and Neva Bay occurred in the period of 1950-1990. Since the 1990s, the trend has been a slow decline in the contamination levels; however, the concentrations of some heavy metals in bottom sediments remain high.

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